up to no good 不怀好意...up to now 到目前为止...up to one's neck in 深陷入...up to one's opinions 照自己的主张(行事)...up to par 达到标准,处于正常情况...up to scratch 准备起跑,准备行动,达到标准...up to snuff (身体)状况良好的,精明的...up to the chin 直到下巴,深陷...up to the ears 深陷于...up to the elbows in 忙于...up to the elbows in... 忙于(工作)...up to the eyes 非常忙...up to the hammer 第一流的,极好的...up to the hub 深深陷入...up to the mark 达到标准...up to the minute 最新的...up to the present 至今...up to then 直到那时...up to time 准时...up travel stop 上行停止装置...up wind 顶着风...
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